JP2023061214A - Connector and assembly structure - Google Patents

Connector and assembly structure Download PDF

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Publication number
JP2023061214A
JP2023061214A JP2021171072A JP2021171072A JP2023061214A JP 2023061214 A JP2023061214 A JP 2023061214A JP 2021171072 A JP2021171072 A JP 2021171072A JP 2021171072 A JP2021171072 A JP 2021171072A JP 2023061214 A JP2023061214 A JP 2023061214A
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Prior art keywords
connector
housing
fitting
fuse
convex portion
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JP7381540B2 (en
Inventor
強 濱井
Tsuyoshi Hamai
剛寿 鈴木
Takehisa Suzuki
純也 山本
Junya Yamamoto
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Yazaki Corp
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Yazaki Corp
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Priority to JP2021171072A priority Critical patent/JP7381540B2/en
Priority to US17/965,777 priority patent/US20230120275A1/en
Priority to DE102022211004.8A priority patent/DE102022211004A1/en
Priority to CN202211278899.4A priority patent/CN115995732A/en
Publication of JP2023061214A publication Critical patent/JP2023061214A/en
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Publication of JP7381540B2 publication Critical patent/JP7381540B2/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/68Structural association with built-in electrical component with built-in fuse
    • H01R13/684Structural association with built-in electrical component with built-in fuse the fuse being removable
    • H01R13/688Structural association with built-in electrical component with built-in fuse the fuse being removable with housing part adapted for accessing the fuse
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205Sealing means between cable and housing, e.g. grommet
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42Securing in a demountable manner
    • H01R13/422Securing in resilient one-piece base or case, e.g. by friction; One-piece base or case formed with resilient locking means

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Fuses (AREA)

Abstract

To provide a connector having a built-in fuse and excellent in heat dissipation of heat generated in the fuse when energized.SOLUTION: A connector 1 includes a terminal fitting 6, electric wires 2, 3, a housing 10 that includes a fitting portion 12 having a shape projecting in a fitting direction with the mating component 90 and accommodating the terminal fitting 6, an outer wall portion 11 defining an inner space 11a for routing the electric wires 2, 3 connected to the terminal fitting 6, and a hollow convex portion 13 in which a part of the outer wall portion 11 protrudes outward so as to be convex in the fitting direction, and a fuse 20 having a fusing portion (body portion 21) accommodated in a hollow portion of the convex portion 13 and connected to the electric wires 2, 3. The housing 10 has an insertion portion 15 for inserting the electric wire 2 inside and outside the housing 10 at a position sandwiching the fitting portion 12 between the insertion portion 15 and the convex portion 13.SELECTED DRAWING: Figure 4

Description

本発明は、ヒューズがハウジングに内蔵されたコネクタ、及び、コネクタと相手側部品との組付構造に関する。 The present invention relates to a connector in which a fuse is incorporated in a housing, and an assembly structure for assembling the connector and a mating part.

従来から、ヒューズを内蔵したコネクタを相手側部品(例えば、インバータ等の各種の電装品等)に組み付けるための組付構造が提案されている(例えば、特許文献1,2を参照。)。 Conventionally, there have been proposed assembling structures for assembling a connector with a built-in fuse to a mating component (for example, various electrical components such as an inverter) (see Patent Documents 1 and 2, for example).

特開2016-018692号公報JP 2016-018692 A 特開2015-079723号公報JP 2015-079723 A

ところで、ヒューズを内蔵したコネクタが通電されると、通電に伴うジュール熱によりコネクタ内の導電路(特に、ヒューズの溶断部)の温度が上昇する。ところが、上述した従来のコネクタでは、ハウジングの内部にヒューズが収容されていることで、ヒューズからの放熱が一般に困難である。そのため、ヒューズに生じた熱によってハウジングやヒューズ周辺の内蔵部品等への熱的影響が懸念される。 By the way, when a connector with a built-in fuse is energized, Joule heat accompanying the energization raises the temperature of the conductive path (particularly, the fused portion of the fuse) in the connector. However, in the conventional connector described above, since the fuse is accommodated inside the housing, it is generally difficult to dissipate heat from the fuse. Therefore, there is concern that the heat generated by the fuse may have a thermal effect on the housing and built-in components around the fuse.

本発明の目的の一つは、ヒューズを内蔵しつつ通電時にヒューズに生じた熱の放熱性に優れるコネクタ、及び、コネクタと相手側部品との組付構造の提供である。 SUMMARY OF THE INVENTION One of the objects of the present invention is to provide a connector that has a built-in fuse and is excellent in dissipating heat generated in the fuse when energized, and an assembly structure between the connector and the mating part.

上述した目的を達成するために、本発明に係るコネクタは、下記を特徴としている。 In order to achieve the above object, the connector according to the present invention is characterized as follows.

端子金具と、
前記端子金具に繋がる電線と、
相手側部品との嵌合向きに突出する形状を有し且つ前記端子金具が収容される嵌合部と、前記電線を配索する内部空間を画成する外壁部と、前記嵌合向きに凸となる形状を有するように前記外壁部の一部が外部に向けて突き出された中空の凸状部と、を有するハウジングと、
前記凸状部の中空部分に収容される溶断部を有し、前記電線に接続されるヒューズと、を備える、
コネクタであること。
a terminal fitting;
an electric wire connected to the terminal fitting;
A fitting portion having a shape protruding in a fitting direction with a mating component and accommodating the terminal fitting, an outer wall portion defining an internal space for routing the electric wire, and a projection in the fitting direction. a housing having a hollow convex portion in which a portion of the outer wall portion protrudes outward so as to have a shape of
a fuse having a fusing portion accommodated in a hollow portion of the convex portion and connected to the electric wire;
be a connector.

更に、上述した目的を達成するために、本発明に係るコネクタと相手側部品との組付構造は、下記を特徴としている。 Furthermore, in order to achieve the above object, the assembly structure of the connector and the mating part according to the present invention is characterized as follows.

上述した構成を有するコネクタと、前記コネクタが組み付けられる相手側部品と、を備える組付構造であって、
前記相手側部品は、
前記コネクタの前記嵌合部が嵌め込まれる被嵌合部と、前記コネクタの前記凸状部が嵌め込まれるように前記コネクタから離れる向きに窪む凹状部と、を有し、
前記嵌合部が前記被嵌合部に嵌め込まれ、且つ、前記凸状部が前記凹状部に嵌め込まれた状態にて、前記コネクタが前記相手側部品に組み付けられる、
組付構造であること。
An assembly structure comprising a connector having the above configuration and a mating part to which the connector is assembled,
The mating part is
a fitted portion into which the fitting portion of the connector is fitted; and a concave portion recessed away from the connector so that the convex portion of the connector is fitted therein;
The connector is assembled to the mating component in a state in which the fitting portion is fitted into the fitted portion and the convex portion is fitted into the concave portion.
Must be an assembly structure.

本発明のコネクタ、及び、コネクタと相手側部品との組付構造によれば、コネクタに内蔵されるヒューズの溶断部が、ハウジングの外壁部の一部が外部に向けて突き出された中空の凸状部の中空部分に収容される。ハウジングの凸状部は、ハウジングの嵌合部と同様、相手側部品との嵌合向きに突出している。このような凸状部の配置および形状により、コネクタが相手側部品に組み付けられるとき、ヒューズの溶断部が収容された凸状部が相手側部品の近傍(特に、相手側部品の凹状部)に配置されることになる。この配置により、ヒューズの溶断部に生じた熱が、ハウジングの凸状部から外部に放出され、更に、外部に放出された熱が相手側部品に効率良く吸収される。よって、凸状部の近傍に相手側部品が存在しない場合に比べ、ヒューズの溶断部に生じた熱をより効率良く放熱することができる。したがって、本構成のコネクタ、及び、コネクタと相手側部品との組付構造は、通電時(即ち、相手側部品に組み付けられたとき)においてヒューズに生じた熱の放熱性に優れている。 According to the connector and the assembly structure of the connector and the mating part of the present invention, the fusing part of the fuse contained in the connector is a hollow projection formed by protruding a part of the outer wall of the housing toward the outside. It is housed in the hollow part of the shape. Like the fitting portion of the housing, the convex portion of the housing protrudes in the fitting direction with the mating part. Due to the arrangement and shape of the convex portion, when the connector is assembled to the mating component, the convex portion containing the blown portion of the fuse is positioned near the mating component (particularly, the concave portion of the mating component). will be placed. With this arrangement, the heat generated in the blown portion of the fuse is radiated to the outside from the convex portion of the housing, and the heat radiated to the outside is efficiently absorbed by the mating part. Therefore, the heat generated in the fusing portion of the fuse can be dissipated more efficiently than in the case where there is no mating component in the vicinity of the convex portion. Therefore, the connector of this configuration and the assembly structure of the connector and the mating part are excellent in the heat dissipation property of the heat generated in the fuse when the fuse is energized (that is, when it is assembled to the mating part).

以上、本発明について簡潔に説明した。更に、以下に説明される発明を実施するための形態(以下、「実施形態」という。)を添付の図面を参照して通読することにより、本発明の詳細は更に明確化されるであろう。 The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the following detailed description of the invention (hereinafter referred to as "embodiment") with reference to the accompanying drawings. .

図1は、本発明の実施形態に係るコネクタを示す斜視図である。FIG. 1 is a perspective view showing a connector according to an embodiment of the invention. 図2は、ハウジングの本体部の内部構造を示す下面図である。FIG. 2 is a bottom view showing the internal structure of the main body of the housing. 図3は、図1に示すコネクタを相手側部品に組み付ける際の様子を説明するための図2のA-A断面に対応する断面図である。3 is a sectional view corresponding to the AA section of FIG. 2 for explaining how the connector shown in FIG. 1 is assembled to the mating component. 図4は、コネクタの相手側部品への組み付けが完了した状態における図3に対応する図である。FIG. 4 is a view corresponding to FIG. 3 in a state in which the assembly of the connector to the mating part is completed. 図5は、ヒューズに生じた熱が、ハウジングの凸状部から周辺に放出され、相手側部品の凹状部に吸熱される様子を説明するための図4のB部の拡大図である。FIG. 5 is an enlarged view of portion B in FIG. 4 for explaining how heat generated in the fuse is released from the convex portion of the housing to the surroundings and is absorbed by the concave portion of the mating part.

<実施形態>
以下、図面を参照しながら、本発明の実施形態に係るコネクタ1について説明する。図1に示すコネクタ1は、ハウジング10の本体部11から延出する一対の電線2と、ハウジング10の嵌合部12に嵌合される被嵌合部91を有する相手側部品90(図3及び図4参照)と、を電気的に接続する中継コネクタとして機能する。相手側部品90は、例えば、車両に搭載されるインバータ(直流-交流変換器)であり、本体部11から延出する一対の電線2の一端部は、例えば、車両に搭載されるエアコンディショナに接続される。
<Embodiment>
A connector 1 according to an embodiment of the present invention will be described below with reference to the drawings. A connector 1 shown in FIG. 1 includes a pair of electric wires 2 extending from a body portion 11 of a housing 10 and a mating component 90 (see FIG. and FIG. 4) and functions as a relay connector for electrically connecting. The mating part 90 is, for example, an inverter (DC-AC converter) mounted on a vehicle, and one end of the pair of wires 2 extending from the main body 11 is, for example, an air conditioner mounted on the vehicle. connected to

以下、説明の便宜上、図1~図5に示すように、「前後方向」、「上下方向」及び「左右方向」を定義する。「前後方向」、「上下方向」及び「左右方向」は、互いに直交している。上下方向は、嵌合部12と相手側部品の被嵌合部との嵌合方向と一致している。 Hereinafter, for convenience of explanation, the terms "front-rear direction", "up-down direction" and "left-right direction" are defined as shown in FIGS. "Front-back direction", "up-down direction" and "left-right direction" are orthogonal to each other. The vertical direction coincides with the fitting direction of the fitting portion 12 and the fitted portion of the mating component.

コネクタ1は、ハウジング10を備える。ハウジング10は、樹脂成型品であり、図1、図3及び図4に示すように、主として、本体部11と、嵌合部12と、凸状部13とを一体に備える。 The connector 1 has a housing 10 . The housing 10 is a resin-molded product, and as shown in FIGS. 1, 3, and 4, mainly includes a body portion 11, a fitting portion 12, and a convex portion 13 integrally.

本体部11は、図1及び図2等に示すように、前後方向に延びる略直方体状の箱状の形状を有する。本体部11の下部には、本体部11の内部空間11a(図2参照)と外部とを上下方向に連通する略矩形状の開口部10bが形成されている(図2参照)。開口部10bは、ゴム製のパッキン70が装着された樹脂製のカバー60によって液密的に塞がれることになる(図3参照)。カバー60及びパッキン70の詳細については後述する。本体部11の内部空間11aには、後述するように、ヒューズ20を含む種々の部品が収容される(図2参照)。 As shown in FIGS. 1 and 2, the main body 11 has a substantially rectangular parallelepiped box shape extending in the front-rear direction. A substantially rectangular opening 10b (see FIG. 2) is formed in the lower portion of the main body 11 so as to vertically communicate the internal space 11a (see FIG. 2) of the main body 11 with the outside. The opening 10b is liquid-tightly closed by a resin cover 60 fitted with a rubber packing 70 (see FIG. 3). Details of the cover 60 and the packing 70 will be described later. Various components including the fuse 20 are accommodated in the internal space 11a of the main body 11, as will be described later (see FIG. 2).

嵌合部12は、図1に示すように、本体部11の上面の略中央部から上方に突出する略円筒状の部分であり、相手側部品90の被嵌合部91との嵌合箇所を構成する部分である(図3及び図5も参照)。嵌合部12には、図3に示すように、パッキン30、フロントホルダ40、及びインナハウジング50が、この順に、上側から装着されることになる(図1及び図3参照)。パッキン30、フロントホルダ40、及びインナハウジング50の詳細については後述する。 As shown in FIG. 1, the fitting portion 12 is a substantially cylindrical portion that protrudes upward from a substantially central portion of the upper surface of the main body portion 11, and is a portion to be fitted with a mating portion 91 of the mating component 90. (see also FIGS. 3 and 5). As shown in FIG. 3, the packing 30, the front holder 40, and the inner housing 50 are attached to the fitting portion 12 in this order from above (see FIGS. 1 and 3). Details of the packing 30, the front holder 40, and the inner housing 50 will be described later.

凸状部13は、図1及び図2に示すように、本体部11の上壁14(外壁)の前端部において上面が上方に突出し且つ下面が上方に窪んだ部分である。本例では、凸状部13は、上方に突出し且つ左右方向に延びる半円筒状の形状を有している。換言すると、凸状部13では、本体部11の上壁14(外壁)の一部が上方に向けて凸となるように湾曲することにより、その湾曲している箇所の下方側に中空部分13aが画成されている。より詳細には、凸状部13が画成する中空部分13aは、本体部11の上壁14の下方側の表面が属する平面(図3にて、仮想的に一点鎖線で示す平面P)よりも上方にあり、且つ、湾曲している上壁14(すなわち、凸状部13)に取り囲まれている空間を意味する。なお、このように湾曲している箇所における本体部11の上壁14(外壁)の厚さは、ほぼ一定である。凸状部13は、ヒューズ20(の本体部21)を収容する機能を果たす部分である(図2参照)。 As shown in FIGS. 1 and 2, the convex portion 13 is a portion at the front end portion of the upper wall 14 (outer wall) of the body portion 11 whose upper surface protrudes upward and whose lower surface is recessed upward. In this example, the convex portion 13 has a semi-cylindrical shape that protrudes upward and extends in the left-right direction. In other words, in the convex portion 13, a portion of the upper wall 14 (outer wall) of the main body portion 11 is curved so as to protrude upward, so that the hollow portion 13a is located below the curved portion. is defined. More specifically, the hollow portion 13a defined by the protruding portion 13 extends from the plane to which the surface of the lower side of the upper wall 14 of the body portion 11 belongs (the plane P imaginarily indicated by the dashed line in FIG. 3). is also above and is surrounded by the curved upper wall 14 (that is, the convex portion 13). The thickness of the upper wall 14 (outer wall) of the main body 11 at such curved portions is substantially constant. The convex portion 13 is a portion that functions to accommodate (the body portion 21 of) the fuse 20 (see FIG. 2).

ヒューズ20は、図2~図4に示すように、溶断部が内蔵された円柱状の本体部21(いわゆるガラス管)と、本体部21の両端部から延びる一対の金属製の延出板22と、で構成されている。ヒューズ20は、一対の延出板22を介して本体部21に所定の定格電流を超える大きさの電流が流れた際に上述した溶断部が溶断することで、一対の延出板22間の電気的接続を分断する機能を果たす。 As shown in FIGS. 2 to 4, the fuse 20 includes a cylindrical main body 21 (so-called glass tube) with a built-in fusing part and a pair of metal extension plates 22 extending from both ends of the main body 21. and consists of In the fuse 20, when a current exceeding a predetermined rated current flows through the main body portion 21 through the pair of extension plates 22, the above-described fusing portion is fused, so that the connection between the pair of extension plates 22 is fused. It serves the function of breaking electrical connections.

ヒューズ20の本体部21は、図2~図4に示すように、凸状部13の中空部分13a(即ち、上述した仮想的な平面Pと、凸状部13と、で定義される空間)に収容される。より詳細には、本例では、ヒューズ20の本体部21のほぼ全体が、上述した仮想的な平面Pよりも上方側(即ち、中空部分13aの内側)に存在するように、本体部21が配置されている。これにより、図3及び図4に示すように、ヒューズ20の本体部21のうち上側の略半分の半円筒状の外周面の全域が、凸状部13の半円筒状の内側面に近接配置される。ヒューズ20の本体部21を凸状部13に収容することによる作用・効果については後述する。なお、中空部分13aへの本体部21の最適な配置は、中空部分13aと本体部21との大小関係や各々の形状等に依存するものの、後述する作用・効果の点では、本体部21の少なくとも一部が上述した仮想的な平面Pよりも上方側(即ち、中空部分13aの内側)に存在すればよい。換言すると、本体部21の少なくとも一部が上述した仮想的な平面Pよりも上方側(即ち、中空部分13aの内側)に存在することが、上記「収容」に相当する。 As shown in FIGS. 2 to 4, the body portion 21 of the fuse 20 is a hollow portion 13a of the convex portion 13 (that is, a space defined by the above-described imaginary plane P and the convex portion 13). are housed in More specifically, in this example, the body portion 21 of the fuse 20 is substantially entirely positioned above the virtual plane P (that is, inside the hollow portion 13a). are placed. As a result, as shown in FIGS. 3 and 4, the entire upper semi-cylindrical outer peripheral surface of the body portion 21 of the fuse 20 is arranged close to the semi-cylindrical inner surface of the convex portion 13 . be done. The function and effect of housing the body portion 21 of the fuse 20 in the convex portion 13 will be described later. Although the optimum placement of the body portion 21 in the hollow portion 13a depends on the size relationship between the hollow portion 13a and the body portion 21, their respective shapes, etc., in terms of the functions and effects described later, the body portion 21 is It is sufficient that at least a portion thereof exists above the virtual plane P described above (that is, inside the hollow portion 13a). In other words, the presence of at least part of the main body 21 above the above-described imaginary plane P (that is, inside the hollow portion 13a) corresponds to the above-described "accommodation".

ヒューズ20の一対の延出板22は、ハウジング10の本体部11にインサート成形によって一体化された一対のスタッドボルト4にそれぞれ接続される。一対のスタッドボルト4は、本体部11の上壁14における嵌合部12と凸状部13との間の前後方向位置から、左右方向に間隔を空けて並ぶように内部空間11a内にて下方に延びている。 A pair of extension plates 22 of the fuse 20 are connected to a pair of stud bolts 4 integrated with the body portion 11 of the housing 10 by insert molding. The pair of stud bolts 4 are arranged downward in the internal space 11a so as to be spaced apart in the left-right direction from a position in the front-rear direction between the fitting portion 12 and the convex portion 13 on the upper wall 14 of the main body portion 11. extends to

ハウジング10の本体部11の上壁14の嵌合部12に対応する位置には、内部空間11aと嵌合部12の内部とを上下方向に連通する一対の端子挿通孔(図示省略)が、左右方向に間隔を空けて並ぶように形成されている。一対の端子挿通孔には、一対の端子6(図2参照)が下方から挿通されることになる。その結果、嵌合部12に端子6が収容されることになる。 At a position corresponding to the fitting portion 12 of the upper wall 14 of the main body portion 11 of the housing 10, there is a pair of terminal insertion holes (not shown) vertically communicating the inner space 11a and the inside of the fitting portion 12. It is formed so that it may be located in a line in the left-right direction at intervals. A pair of terminals 6 (see FIG. 2) are inserted from below into the pair of terminal insertion holes. As a result, the terminal 6 is accommodated in the fitting portion 12 .

ハウジング10の本体部11の後壁には、図2に示すように、本体部11の内部空間11aと外部とを前後方向に連通する一対の電線挿通孔15が、左右方向に間隔を空けて並ぶように形成されている。このように、一対の電線挿通孔15は、凸状部13との間に嵌合部12を前後方向に挟むように位置している。 As shown in FIG. 2, a pair of wire insertion holes 15 are provided in the rear wall of the body portion 11 of the housing 10 at intervals in the left-right direction to communicate the interior space 11a of the body portion 11 with the outside in the front-rear direction. formed to line up. In this way, the pair of wire insertion holes 15 are positioned so as to sandwich the fitting portion 12 in the front-rear direction with the convex portion 13 .

一対の電線挿通孔15には、ハウジング10から延出する一対の電線2の他端部がそれぞれ挿通され、一対の電線2の他端部は、内部空間11a内に配索される。更に、電線3が、内部空間11a内に配索される。左側の電線挿通孔15に挿通された電線2の他端、及び、電線3の一端にはそれぞれ、端子(いわゆるLA端子)5が接続されている。右側の電線挿通孔15に挿通された電線2の他端、及び、電線3の他端にはそれぞれ、矩形平板状の端子6が接続されている。 The other ends of the pair of wires 2 extending from the housing 10 are inserted through the pair of wire insertion holes 15, respectively, and the other ends of the pair of wires 2 are routed in the internal space 11a. Further, the electric wire 3 is routed inside the internal space 11a. Terminals (so-called LA terminals) 5 are connected to the other ends of the wires 2 and one end of the wires 3 inserted through the wire insertion hole 15 on the left side, respectively. A terminal 6 in the form of a rectangular plate is connected to the other end of the wire 2 and the other end of the wire 3 inserted through the wire insertion hole 15 on the right side, respectively.

一対の端子5は、一対のスタッドボルト4にそれぞれ接続されて、ヒューズ20の一対の延出板22と、一対のナット7を利用してそれぞれ共締めされる(図2参照)。一対の端子6は、ハウジング10の一対の端子挿通孔に下方から挿入されて、それらの上端部が嵌合部12の内部に露出した状態で、ハウジング10に対して固定される。一対の端子6のハウジング10に対する固定は、嵌合部12に装着されたインナハウジング50に設けられた一対の係止片(図示省略)と、一対の端子6に設けられた一対の係止孔(図示省略)とが係合することで達成される。これにより、ハウジング10から延出する一対の電線2のうち、右側の電線2が右側の端子6に直接接続され、左側の電線2がヒューズ20を介して左側の端子6に接続されている。 A pair of terminals 5 are connected to a pair of stud bolts 4, respectively, and are tightened together using a pair of extending plates 22 of the fuse 20 and a pair of nuts 7 (see FIG. 2). The pair of terminals 6 are inserted into the pair of terminal insertion holes of the housing 10 from below and fixed to the housing 10 with their upper ends exposed inside the fitting portion 12 . The pair of terminals 6 are fixed to the housing 10 by a pair of locking pieces (not shown) provided on the inner housing 50 attached to the fitting portion 12 and a pair of locking holes provided on the pair of terminals 6 . (not shown) are engaged. As a result, of the pair of wires 2 extending from the housing 10 , the right wire 2 is directly connected to the right terminal 6 , and the left wire 2 is connected to the left terminal 6 via the fuse 20 .

ハウジング10の本体部11の外周側面における4つの角部にはそれぞれ、図2に示すように、係止突起16が設けられている。係止突起16は、カバー60の後述する係止枠部63(図1参照)との協働により、カバー60をハウジング10に保持する機能を果たす。 As shown in FIG. 2, locking protrusions 16 are provided at four corners on the outer peripheral side surface of the body portion 11 of the housing 10, respectively. The locking projections 16 function to hold the cover 60 to the housing 10 in cooperation with locking frame portions 63 (see FIG. 1) of the cover 60, which will be described later.

次いで、図1及び図3を参照しながら、ハウジング10の嵌合部12の詳細、並びに、嵌合部12に上側から装着されるパッキン30、フロントホルダ40、及びインナハウジング50の詳細について、順に説明する。 Next, with reference to FIGS. 1 and 3, details of the fitting portion 12 of the housing 10, and details of the packing 30, the front holder 40, and the inner housing 50 attached to the fitting portion 12 from above will be described in order. explain.

まず、嵌合部12について説明する。ハウジング10の本体部11の上壁14から突出する略円筒状の嵌合部12の根元部の周囲には、上方に開口し且つ下方に窪む円環状の環状溝部17が形成されている(図3~図5参照)。環状溝部17には、パッキン30の後述する下縁部33が収容されることになる(図3及び図4参照)。 First, the fitting portion 12 will be described. Around the base of the substantially cylindrical fitting portion 12 protruding from the upper wall 14 of the body portion 11 of the housing 10, an annular groove portion 17 is formed which is open upward and recessed downward (see FIG. 3 to 5). A later-described lower edge portion 33 of the packing 30 is accommodated in the annular groove portion 17 (see FIGS. 3 and 4).

図3に示すように、略円筒状の嵌合部12の上側領域のうち前後方向両端部分には、一対の係止枠部19が、前後方向に対向し且つ左右方向に延びるように、形成されている。各係止枠部19は、上端を自由端とする片持ち梁状の形状を有しており、前後方向に弾性変形可能となっている。一対の係止枠部19は、インナハウジング50を係止する機能を果たす(図3参照)。 As shown in FIG. 3, a pair of locking frame portions 19 are formed on both ends in the front-rear direction of the upper region of the substantially cylindrical fitting portion 12 so as to face each other in the front-rear direction and extend in the left-right direction. It is Each locking frame portion 19 has a cantilever shape with an upper end as a free end, and is elastically deformable in the front-rear direction. The pair of locking frame portions 19 has a function of locking the inner housing 50 (see FIG. 3).

次いで、パッキン30について説明する。パッキン30は、略円筒状の形状を有するゴム製のシール部材である。パッキン30は、嵌合部12の外周と、嵌合部12と嵌合される相手側部品90の被嵌合部91の内周と、の間の隙間を封止する機能を果たす。 Next, the packing 30 will be explained. The packing 30 is a rubber sealing member having a substantially cylindrical shape. The packing 30 functions to seal a gap between the outer periphery of the fitting portion 12 and the inner periphery of the fitted portion 91 of the mating component 90 to be fitted with the fitting portion 12 .

パッキン30は、内周側及び外周側に環状のリップ部が形成された円筒状の本体部31と、本体部31から上側に延びる円筒状の上縁部32と、本体部31から下側に延びる円筒状の下縁部33と、で構成されている。パッキン30は、嵌合部12に上側から外挿されて、下縁部33が環状溝部17に収容され且つ嵌合部12(の円筒状の下側領域)の外周に密着するように、嵌合部12に装着される。 The packing 30 includes a cylindrical main body portion 31 having annular lips formed on the inner and outer peripheral sides, a cylindrical upper edge portion 32 extending upward from the main body portion 31, and a cylindrical upper edge portion 32 extending upward from the main body portion 31. and an extending cylindrical lower edge 33 . The packing 30 is externally inserted into the fitting portion 12 from above so that the lower edge portion 33 is accommodated in the annular groove portion 17 and closely adheres to the outer circumference of (the cylindrical lower region of) the fitting portion 12 . Attached to joint 12 .

次いで、フロントホルダ40について説明する。フロントホルダ40は、樹脂成形品であり、パッキン30に隣り合うように配置されてパッキン30の嵌合部12からの脱落(上方への抜け)を防止する機能を果たす。図3等に示すように、フロントホルダ40は、全体として中空環状(略円筒状)の形状を有する。 Next, the front holder 40 will be explained. The front holder 40 is a molded resin product, and is arranged adjacent to the packing 30 to prevent the packing 30 from coming off (upwardly) from the fitting portion 12 . As shown in FIG. 3 and the like, the front holder 40 has a hollow annular (substantially cylindrical) shape as a whole.

フロントホルダ40は、パッキン30が装着された嵌合部12に上側から外挿されて、その下縁部がパッキン30の上縁部32の外周を覆うように、嵌合部12の外周に装着される(図3参照)。フロントホルダ40の嵌合部12への装着状態では、フロントホルダ40の一対の係合突起部(図示省略)がハウジング10の嵌合部12の一対の貫通孔(図示省略)と係合することで、フロントホルダ40の嵌合部12からの脱落(上方への抜け)が防止される。また、フロントホルダ40の下縁部がパッキン30に隣り合ってパッキン30の上縁部32の外周を覆うことで、パッキン30の嵌合部12からの脱落(上方への抜け)が防止される。 The front holder 40 is inserted from above into the fitting portion 12 to which the packing 30 is attached, and is attached to the outer periphery of the fitting portion 12 so that the lower edge thereof covers the outer periphery of the upper edge portion 32 of the packing 30. (See FIG. 3). When the front holder 40 is attached to the fitting portion 12 , the pair of engaging protrusions (not shown) of the front holder 40 are engaged with the pair of through holes (not shown) of the fitting portion 12 of the housing 10 . Therefore, the front holder 40 is prevented from coming off (upwardly) from the fitting portion 12 . In addition, the lower edge of the front holder 40 is adjacent to the packing 30 and covers the outer periphery of the upper edge 32 of the packing 30, thereby preventing the packing 30 from coming off (upwardly) from the fitting portion 12. .

次いで、インナハウジング50について説明する。インナハウジング50は、樹脂成形品であり、相手側部品90が有する相手側コネクタ(図示省略)が挿入される開口を画成する機能、端子6を保持する機能、及び、端子6と相手側部品(図示省略)に設けられる相手側端子(図示省略)との位置合わせ等の機能(いわゆる調芯機能)等を果たす。インナハウジング50は、図1及び図3に示すように、上下方向に延びる略矩形筒状の形状を有する。インナハウジング50の上端開口51は、相手側部品90が有する相手側コネクタが挿入される開口として機能する。 Next, the inner housing 50 will be explained. The inner housing 50 is a molded resin product, and has a function of defining an opening into which a mating connector (not shown) of the mating component 90 is inserted, a function of holding the terminals 6, and a function of holding the terminals 6 and the mating component. (illustration omitted). As shown in FIGS. 1 and 3, the inner housing 50 has a substantially rectangular cylindrical shape extending vertically. The upper end opening 51 of the inner housing 50 functions as an opening into which the mating connector of the mating component 90 is inserted.

インナハウジング50の前後方向に対向する一対の側面には、図3に示すように、一対の係止突起52が形成されている。インナハウジング50は、パッキン30及びフロントホルダ40が装着された嵌合部12に上側から内挿されて、嵌合部12の筒内に配置される。インナハウジング50の嵌合部12への配置状態では、図3に示すように、インナハウジング50の一対の係止突起52がハウジング10の嵌合部12の一対の係止枠部19の開口縁と係合することで、インナハウジング50の嵌合部12からの脱落(上方への抜け)が防止される。 A pair of locking protrusions 52 are formed on a pair of side surfaces of the inner housing 50 facing each other in the front-rear direction, as shown in FIG. The inner housing 50 is inserted from above into the fitting portion 12 to which the packing 30 and the front holder 40 are attached, and arranged in the cylinder of the fitting portion 12 . When the inner housing 50 is arranged in the fitting portion 12, as shown in FIG. By engaging with , the inner housing 50 is prevented from coming off (upwardly coming off) from the fitting portion 12 .

このように、インナハウジング50が嵌合部12の筒内に位置された状態で、一対の端子6が、ハウジング10の一対の端子挿通孔(図示省略)に下方から挿入される。そして、インナハウジング50に設けられた一対の係止片(図示省略)と、一対の端子6に設けられた一対の係止孔(図示省略)とが係合することで、一対の端子6は、それらの上端部が嵌合部12の内部に露出した状態で、ハウジング10に対して固定される。 In this manner, the pair of terminals 6 are inserted into the pair of terminal insertion holes (not shown) of the housing 10 from below while the inner housing 50 is positioned inside the cylinder of the fitting portion 12 . By engaging a pair of locking pieces (not shown) provided on the inner housing 50 with a pair of locking holes (not shown) provided on the pair of terminals 6, the pair of terminals 6 are , are fixed to the housing 10 with their upper ends exposed inside the fitting portion 12 .

次いで、ハウジング10の本体部11に下側から装着されるカバー60、パッキン70、及び押え板80の詳細について、順に説明する。 Next, the details of the cover 60, the packing 70, and the pressing plate 80, which are attached to the body portion 11 of the housing 10 from below, will be described in order.

まず、カバー60について説明する。カバー60は、ハウジング10の本体部11の開口部10b(図2参照)を塞ぐ機能を果たす。カバー60は、樹脂成形品であり、開口部10bの形状(図2参照)に対応する略矩形状の外形状を有する。 First, the cover 60 will be explained. The cover 60 functions to close the opening 10b (see FIG. 2) of the main body 11 of the housing 10. As shown in FIG. The cover 60 is a resin molded product and has a substantially rectangular outer shape corresponding to the shape of the opening 10b (see FIG. 2).

次いで、パッキン70について説明する。パッキン70は、ゴム製のシール部材であり、カバー60の外周面と、ハウジング10の本体部11の開口部10bの内壁面と、の間の隙間を封止する機能を果たす。パッキン70は、カバー60の外形状に対応する略矩形状の環状の形状を有する。 Next, the packing 70 will be explained. The packing 70 is a sealing member made of rubber, and functions to seal the gap between the outer peripheral surface of the cover 60 and the inner wall surface of the opening 10b of the main body 11 of the housing 10 . The packing 70 has a substantially rectangular annular shape corresponding to the outer shape of the cover 60 .

パッキン70は、カバー60の外周面に密着するように、カバー60に装着される。パッキン70が装着されたカバー60は、ハウジング10の本体部11の開口部10bに装着される。カバー60が開口部10bに装着された状態では、パッキン70が、カバー60の外周面と開口部10bの内壁面との間に位置して、両者の間の隙間を封止している。カバー60の係止枠部63がハウジング10の係止突起16と係合することで、カバー60がハウジング10に保持されている(図1参照)。 The packing 70 is attached to the cover 60 so as to be in close contact with the outer peripheral surface of the cover 60 . The cover 60 with the packing 70 attached thereto is attached to the opening 10b of the body portion 11 of the housing 10 . When the cover 60 is attached to the opening 10b, the packing 70 is positioned between the outer peripheral surface of the cover 60 and the inner wall surface of the opening 10b to seal the gap therebetween. The cover 60 is held by the housing 10 by engaging the locking frame portion 63 of the cover 60 with the locking projection 16 of the housing 10 (see FIG. 1).

次いで、押え板80について説明する。押え板80は、パッキン70が装着されたカバー60のハウジング10からの脱落(即ち、下方への抜け)を防止する機能、及び、コネクタ1を相手側部品に固定する機能を果たす。押え板80は、1枚の金属板に対して所定のプレス加工及び曲げ加工等を施すことで形成される。 Next, the pressing plate 80 will be described. The pressing plate 80 has the function of preventing the cover 60 with the packing 70 attached from coming off (that is, coming off downward) from the housing 10 and the function of fixing the connector 1 to the mating component. The pressing plate 80 is formed by subjecting a single metal plate to predetermined press work, bending work, and the like.

押え板80は、ハウジング10に装着されたカバー60の外周縁部を全周に亘って覆うことが可能な形状を有する平板状の形状を有している。押え板80には、押え板80がハウジング10に装着された状態にてハウジング10からはみ出すように延びるフランジ部81が、複数箇所(本例では、2箇所)にそれぞれ設けられている(図1も参照)。各フランジ部81には上下方向に貫通するボルト挿通孔82が形成されている。 The pressing plate 80 has a plate-like shape capable of covering the entire circumference of the outer peripheral edge of the cover 60 attached to the housing 10 . Pressing plate 80 is provided with flange portions 81 at a plurality of locations (two locations in this example) that extend so as to protrude from housing 10 when pressing plate 80 is attached to housing 10 (FIG. 1). see also). A bolt insertion hole 82 is formed through each flange portion 81 in the vertical direction.

押え板80は、カバー60を下側から覆うようにハウジング10に下方から装着されて、ネジ(図示省略)をハウジング10に設けられた対応するメネジ部10a(図2参照)に捻じ込んでカバー60を共締めすることで、ハウジング10に固定される。押え板80がハウジング10に固定されることで、パッキン70が装着されたカバー60のハウジング10からの脱落(即ち、下方への抜け)が防止される。 The retainer plate 80 is attached to the housing 10 from below so as to cover the cover 60 from below, and a screw (not shown) is screwed into the corresponding female screw portion 10a (see FIG. 2) provided on the housing 10 to secure the cover. By tightening 60 together, it is fixed to the housing 10 . By fixing the pressing plate 80 to the housing 10 , the cover 60 to which the packing 70 is attached is prevented from coming off (that is, coming off downward) from the housing 10 .

以上により、コネクタ1の組み付けが完了し、図1に示すコネクタ1が得られる。組み付けが完了したコネクタ1は、図3及び図4に示す相手側部品90の金属製の筐体に組み付けられる。相手側部品90の筐体におけるコネクタ1の組付箇所には、コネクタ1のハウジング10の嵌合部12に対応して、嵌合部12が嵌め込まれる嵌合孔である被嵌合部91が形成されている。更に、コネクタ1のハウジング10の凸状部13に対応して、凸状部13を嵌め込み可能な凹形状を有する凹状部92が形成されている。 As described above, assembly of the connector 1 is completed, and the connector 1 shown in FIG. 1 is obtained. The assembled connector 1 is assembled to the metal housing of the mating component 90 shown in FIGS. 3 and 4 . A fitting portion 91, which is a fitting hole into which the fitting portion 12 is fitted, corresponds to the fitting portion 12 of the housing 10 of the connector 1 at the assembly location of the connector 1 in the housing of the mating component 90. formed. Further, a recessed portion 92 having a recessed shape in which the projected portion 13 can be fitted is formed corresponding to the projected portion 13 of the housing 10 of the connector 1 .

コネクタ1は、図3及び図4に示すように、嵌合部12が被嵌合部91に嵌め込まれ、且つ、凸状部13が凹状部92に嵌め込まれるように、相手側部品90の組付箇所に組み付けられる。この結果、図4に示すように、凸状部13の半円筒状の外周面が、凹状部92の内周面に近接配置される。 As shown in FIGS. 3 and 4, the connector 1 is assembled with the mating part 90 such that the fitting portion 12 is fitted into the fitted portion 91 and the convex portion 13 is fitted into the concave portion 92 . It is assembled at the attached point. As a result, as shown in FIG. 4 , the semi-cylindrical outer peripheral surface of the convex portion 13 is arranged close to the inner peripheral surface of the concave portion 92 .

次いで、押え板80のフランジ部81のボルト挿通孔82に挿通されたボルト(図示省略)を利用して、コネクタ1が相手側部品90の筐体に締結固定される。相手側部品90に固定されたコネクタ1の嵌合部12には、相手側部品90が有する相手側コネクタが挿入される。これにより、相手側コネクタに収容されている相手側端子(メス端子)と嵌合部12内に位置する一対の端子6とが電気的に接続される。 Next, the connector 1 is fastened and fixed to the housing of the mating component 90 using bolts (not shown) inserted through the bolt insertion holes 82 of the flange portion 81 of the pressing plate 80 . A mating connector of the mating component 90 is inserted into the fitting portion 12 of the connector 1 fixed to the mating component 90 . As a result, the mating terminals (female terminals) accommodated in the mating connector and the pair of terminals 6 positioned within the fitting portion 12 are electrically connected.

このように、コネクタ1が相手側部品90に組み付けられた状態にて、ヒューズ20を内蔵したコネクタ1が通電されると、通電に伴うジュール熱によりコネクタ1内の導電路(特に、ヒューズ20の溶断部を内蔵する本体部21)の温度が上昇する。ここで、ハウジング10の内部にヒューズ20の本体部21が収容されていることで、ヒューズ20に生じた熱によってハウジング10やヒューズ20周辺の内蔵部品等への熱的影響が懸念される。 When the connector 1 with the fuse 20 incorporated therein is energized while the connector 1 is assembled to the mating part 90 in this manner, the Joule heat associated with the energization causes the conductive path in the connector 1 (in particular, the fuse 20 to heat up). The temperature of the body portion 21) containing the fusing portion rises. Here, since the body portion 21 of the fuse 20 is accommodated inside the housing 10 , there is concern that the heat generated in the fuse 20 may have a thermal effect on the housing 10 and internal components around the fuse 20 .

この点、コネクタ1が相手側部品90に組み付けられた状態では、図4に示すように、ヒューズ20の本体部21のうち上側の略半分の半円筒状の外周面の全域が、凸状部13の半円筒状の内周面に近接配置され、且つ、凸状部13の半円筒状の外周面が、凹状部92の内周面に近接配置されている。このような、ヒューズ20、凸状部13及び凹状部92の位置関係により、ヒューズ20の本体部21に生じた熱が、図5に示すように、凸状部13から周辺に放出され、相手側部品90の凹状部92に吸熱される。よって、ヒューズ20に生じた熱を、凸状部13を経て凹状部92に向けて、効率良く放熱することができる。 In this regard, when the connector 1 is assembled to the mating component 90, as shown in FIG. The semi-cylindrical outer peripheral surface of the convex portion 13 is arranged close to the inner peripheral surface of the concave portion 92 . Due to such a positional relationship between the fuse 20, the convex portion 13 and the concave portion 92, the heat generated in the main body portion 21 of the fuse 20 is released from the convex portion 13 to the surroundings as shown in FIG. The heat is absorbed by the concave portion 92 of the side part 90 . Therefore, heat generated in the fuse 20 can be efficiently dissipated through the convex portion 13 toward the concave portion 92 .

<作用・効果>
以上、本実施形態に係るコネクタ1によれば、コネクタ1に内蔵されるヒューズ20の溶断部を内蔵する本体部21が、ハウジング10の本体部11の一部が外部に向けて突き出された中空の凸状部13の中空部分13aに収容される。具体的には、ハウジング10の本体部11の上壁14(外壁部)の一部が上方に向けて凸となるように湾曲することにより、凸状部13の中空部分13aが画成されている。ハウジング10の凸状部13は、ハウジング10の嵌合部12と同様、相手側部品90との嵌合向きに突出している。このような凸状部13の配置および形状により、コネクタ1が相手側部品90に組み付けられるとき、ヒューズ20の本体部21が収容された凸状部13が相手側部品90の近傍に配置されることになる。この配置により、ヒューズ20の本体部21に生じた熱が、ハウジング10の凸状部13から周辺に放出され、相手側部品90に吸熱される。よって、凸状部13の近傍に相手側部品90がない場合に比べ、ヒューズ20に生じた熱をより効率良く放熱することができる。したがって、本実施形態に係るコネクタ1は、通電時(即ち、相手側部品90に組み付けられたとき)においてヒューズ20に生じた熱の放熱性に優れている。
<Action/effect>
As described above, according to the connector 1 according to the present embodiment, the main body portion 21 that incorporates the fusing portion of the fuse 20 that is built into the connector 1 is a hollow portion in which a part of the main body portion 11 of the housing 10 protrudes toward the outside. is accommodated in the hollow portion 13a of the convex portion 13 of the . Specifically, a part of the upper wall 14 (outer wall) of the main body 11 of the housing 10 is curved upward to form a hollow portion 13 a of the convex portion 13 . there is Like the fitting portion 12 of the housing 10 , the convex portion 13 of the housing 10 protrudes in the fitting direction with the mating component 90 . Due to such arrangement and shape of the convex portion 13 , when the connector 1 is assembled to the mating component 90 , the convex portion 13 containing the body portion 21 of the fuse 20 is arranged near the mating component 90 . It will be. With this arrangement, the heat generated in the body portion 21 of the fuse 20 is released to the surroundings from the convex portion 13 of the housing 10 and absorbed by the mating component 90 . Therefore, the heat generated in the fuse 20 can be dissipated more efficiently than in the case where the mating component 90 is not in the vicinity of the convex portion 13 . Therefore, the connector 1 according to the present embodiment is excellent in dissipating heat generated in the fuse 20 when energized (that is, when assembled to the mating component 90).

更に、一対の電線2をハウジング10の内外に挿通させる一対の電線挿通孔15(図2参照)が、電線挿通孔15と凸状部13との間に嵌合部12を挟むように配置される。これにより、コネクタ1内での配索路の形状をシンプル化でき、ハウジング10に端子6およびヒューズ20を取り付ける作業の作業性を向上できる。 Further, a pair of wire insertion holes 15 (see FIG. 2) for inserting the pair of wires 2 inside and outside the housing 10 are arranged so that the fitting portion 12 is sandwiched between the wire insertion holes 15 and the convex portion 13. be. As a result, the shape of the wiring path in the connector 1 can be simplified, and the workability of attaching the terminal 6 and the fuse 20 to the housing 10 can be improved.

更に、本実施形態に係るコネクタ1と相手側部品90との組付構造によれば、コネクタ1に内蔵されるヒューズ20の本体部21が、ハウジング10の本体部11の一部が外部に向けて突き出された中空の凸状部13の中空部分13aに収容される。ハウジング10の凸状部13は、ハウジング10の嵌合部12と同様、相手側部品90との嵌合向きに突出している。更に、相手側部品90は、コネクタ1の嵌合部12が嵌め込まれる被嵌合部91と、コネクタ1の凸状部13が嵌め込まれるように窪む凹状部92と、を有する。そして、コネクタ1が相手側部品90に組み付けられるとき、ヒューズ20の本体部21が収容された凸状部13が相手側部品90の凹状部92に嵌め込まれることになる。このような凸状部13と凹状部92との嵌め合いにより、ヒューズ20の本体部21に生じた熱が、ハウジング10の凸状部13から周辺に放出され、相手側部品90の凹状部92に吸熱される。よって、ヒューズ20に生じた熱を、凸状部13を経て凹状部92に向けて、効率良く放熱することができる。したがって、本実施形態に係る組付構造は、コネクタ1への通電時(即ち、コネクタ1が相手側部品90に組み付けられたとき)、ヒューズ20に生じた熱の放熱性に優れている。 Furthermore, according to the assembly structure of the connector 1 and the mating part 90 according to the present embodiment, the main body portion 21 of the fuse 20 incorporated in the connector 1 is partially directed to the outside of the main body portion 11 of the housing 10. It is accommodated in the hollow portion 13a of the hollow convex portion 13 protruding from the bottom. Like the fitting portion 12 of the housing 10 , the convex portion 13 of the housing 10 protrudes in the fitting direction with the mating component 90 . Further, the mating component 90 has a fitted portion 91 into which the fitting portion 12 of the connector 1 is fitted, and a concave portion 92 which is recessed so that the convex portion 13 of the connector 1 is fitted. When the connector 1 is assembled to the mating component 90 , the convex portion 13 accommodating the body portion 21 of the fuse 20 is fitted into the concave portion 92 of the mating component 90 . Due to such fitting between the convex portion 13 and the concave portion 92 , the heat generated in the main body portion 21 of the fuse 20 is released from the convex portion 13 of the housing 10 to the surroundings, and the concave portion 92 of the mating component 90 is released. endothermic to Therefore, heat generated in the fuse 20 can be efficiently dissipated through the convex portion 13 toward the concave portion 92 . Therefore, the assembly structure according to the present embodiment is excellent in dissipating heat generated in the fuse 20 when the connector 1 is energized (that is, when the connector 1 is assembled to the mating component 90).

<他の形態>
なお、本発明は上記各実施形態に限定されることはなく、本発明の範囲内において種々の変形例を採用することができる。例えば、本発明は、上述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。その他、上述した実施形態における各構成要素の材質、形状、寸法、数、配置箇所、等は本発明を達成できるものであれば任意であり、限定されない。
<Other forms>
The present invention is not limited to the above-described embodiments, and various modifications can be adopted within the scope of the present invention. For example, the present invention is not limited to the above-described embodiments, and can be modified, improved, etc. as appropriate. In addition, the material, shape, size, number, location, etc. of each component in the above-described embodiment are arbitrary and not limited as long as the present invention can be achieved.

上記実施形態では、一対の電線2をハウジング10の内外に挿通させる一対の電線挿通孔15(図2参照)が、電線挿通孔15と凸状部13との間に嵌合部12を挟むように配置される。これに対し、一対の電線2をハウジング10の内外に挿通させる一対の電線挿通孔15(図2参照)が、電線挿通孔15と凸状部13との間に嵌合部12を挟むように配置されていなくてもよい。 In the above-described embodiment, the pair of wire insertion holes 15 (see FIG. 2) through which the pair of wires 2 are inserted into and out of the housing 10 is arranged so that the fitting portion 12 is sandwiched between the wire insertion hole 15 and the convex portion 13 . placed in On the other hand, a pair of wire insertion holes 15 (see FIG. 2) through which the pair of wires 2 are inserted inside and outside the housing 10 are arranged so that the fitting portion 12 is sandwiched between the wire insertion hole 15 and the convex portion 13 . It does not have to be placed.

更に、上記実施形態では、ハウジング10の凸状部13の外表面は湾曲した曲面状の形状を有している。これに対し、凸状部13の外表面に、外部に向けて突出する一又は複数の突起やリブ(いわゆる放熱フィン)を設けてもよい。これら突起やリブにより、凸状部13を通じた放熱を、更に効率良く行うことができる。 Furthermore, in the above embodiment, the outer surface of the convex portion 13 of the housing 10 has a curved shape. On the other hand, the outer surface of the convex portion 13 may be provided with one or a plurality of protrusions or ribs (so-called heat radiation fins) protruding toward the outside. These protrusions and ribs enable more efficient heat dissipation through the convex portion 13 .

ここで、上述した本発明に係るコネクタ1、及び、コネクタ1と相手側部品90との組付構造、の実施形態の特徴をそれぞれ以下[1]~[4]に簡潔に纏めて列記する。 Here, the features of the embodiment of the connector 1 according to the present invention described above and the assembly structure of the connector 1 and the mating part 90 will be briefly summarized in [1] to [4] below.

[1]
端子金具(6)と、
前記端子金具(6)に繋がる電線(2,3)と、
相手側部品(90)との嵌合向きに突出する形状を有し且つ前記端子金具(6)が収容される嵌合部(12)と、前記端子金具(6)に繋がる電線(2,3)を配索する内部空間(11a)を画成する外壁部(11)と、前記嵌合向きに凸となる形状を有するように前記外壁部(11)の一部が外部に向けて突き出された中空の凸状部(13)と、を有するハウジング(10)と、
前記凸状部(13)の中空部分(13a)に収容される溶断部(本体部21に内蔵)を有し、前記電線(2,3)に接続されるヒューズ(20)と、を備える、
コネクタ(1)。
[1]
a terminal fitting (6);
Electric wires (2, 3) connected to the terminal fitting (6);
A fitting part (12) having a shape protruding in a fitting direction with a mating part (90) and accommodating the terminal fitting (6), and electric wires (2, 3) connected to the terminal fitting (6) ), and a portion of the outer wall portion (11) protruding outward so as to have a convex shape in the fitting direction. a housing (10) having a hollow projection (13) with a
a fuse (20) having a fusing portion (built into the main body portion 21) accommodated in the hollow portion (13a) of the convex portion (13) and connected to the electric wires (2, 3);
Connector (1).

上記[1]の構成のコネクタによれば、コネクタに内蔵されるヒューズの溶断部が、ハウジングの外壁部の一部が外部に向けて突き出された中空の凸状部の中空部分に収容される。ハウジングの凸状部は、ハウジングの嵌合部と同様、相手側部品との嵌合向きに突出している。このような凸状部の配置および形状により、コネクタが相手側部品に組み付けられるとき、ヒューズの溶断部が収容された凸状部が相手側部品の近傍に配置されることになる。この配置により、ヒューズの溶断部に生じた熱が、ハウジングの凸状部から周辺に放出され、相手側部品に吸熱される。よって、凸状部の近傍に相手側部品がない場合に比べ、ヒューズに生じた熱をより効率良く放熱することができる。したがって、本構成のコネクタは、通電時(即ち、相手側部品に組み付けられたとき)においてヒューズに生じた熱の放熱性に優れている。 According to the connector having the above configuration [1], the fusing part of the fuse incorporated in the connector is accommodated in the hollow portion of the hollow convex portion projecting outward from a part of the outer wall of the housing. . Like the fitting portion of the housing, the convex portion of the housing protrudes in the fitting direction with the mating part. Due to such arrangement and shape of the convex portion, when the connector is assembled to the mating component, the convex portion containing the blown portion of the fuse is arranged in the vicinity of the mating component. With this arrangement, the heat generated in the fused portion of the fuse is released to the surroundings from the convex portion of the housing and is absorbed by the mating component. Therefore, the heat generated in the fuse can be dissipated more efficiently than when there is no mating component near the convex portion. Therefore, the connector of this configuration is excellent in dissipating heat generated in the fuse when energized (that is, when assembled to the mating component).

[2]
上記[1]に記載のコネクタ(1)において、
前記ハウジング(10)は、
前記電線(2)を当該ハウジング(10)の内外に挿通させる挿通部(15)を、前記凸状部(13)と当該挿通部(15)との間に前記嵌合部(12)を挟む位置に有する、
コネクタ(1)。
[2]
In the connector (1) according to [1] above,
The housing (10) comprises:
An insertion portion (15) for inserting the electric wire (2) into and out of the housing (10) is sandwiched between the projection (13) and the insertion portion (15) with the fitting portion (12). have in position,
Connector (1).

上記[2]の構成のコネクタによれば、電線をハウジングの内外に挿通させる挿通部が、その挿通部と凸状部との間に嵌合部を挟むように配置される。これにより、コネクタ内での電線の形状をシンプル化でき、ハウジングに端子およびヒューズを取り付ける作業の作業性を向上できる。 According to the connector having the configuration [2], the insertion portion for inserting the electric wire into and out of the housing is arranged so that the fitting portion is sandwiched between the insertion portion and the convex portion. As a result, the shape of the wires in the connector can be simplified, and the workability of attaching the terminals and the fuse to the housing can be improved.

[3]
上記[1]又は上記[2]に記載のコネクタにおいて、
前記外壁部(11)の前記一部が外部に向けて凸となるように湾曲することにより、前記凸状部(13)の前記中空部分(13a)が画成される、
コネクタ(1)。
[3]
In the connector according to [1] or [2] above,
The hollow portion (13a) of the convex portion (13) is defined by curving the portion of the outer wall portion (11) so as to protrude outward.
Connector (1).

上記[3]のコネクタによれば、ヒューズの溶断部を収容する中空部分をハウジングの凸状部に容易に設けることを、容易に実現できる。 According to the connector of [3] above, it is possible to easily provide the hollow portion for accommodating the fusing portion of the fuse in the convex portion of the housing.

[4]
上記[1]~上記[3]の何れか一つに記載のコネクタ(1)と、前記コネクタ(1)が組み付けられる相手側部品(90)と、を備える組付構造であって、
前記相手側部品(90)は、
前記コネクタ(1)の前記嵌合部(12)が嵌め込まれる被嵌合部(91)と、前記コネクタ(1)の前記凸状部(13)が嵌め込まれるように前記コネクタ(1)から離れる向きに窪む凹状部(92)と、を有し、
前記嵌合部(12)が前記被嵌合部(91)に嵌め込まれ、且つ、前記凸状部(13)が前記凹状部(92)に嵌め込まれた状態にて、前記コネクタ(1)が前記相手側部品(90)に組み付けられる、
組付構造。
[4]
An assembly structure comprising the connector (1) according to any one of [1] to [3] above and a mating part (90) to which the connector (1) is attached,
The mating part (90) is
A fitted portion (91) into which the fitting portion (12) of the connector (1) is fitted, and a portion away from the connector (1) so that the convex portion (13) of the connector (1) is fitted. a concave portion (92) recessed in the direction of
With the fitting portion (12) fitted into the fitted portion (91) and the convex portion (13) fitted into the concave portion (92), the connector (1) is assembled to the mating part (90),
assembly structure.

上記[4]の構成の組付構造によれば、コネクタに内蔵されるヒューズの溶断部が、ハウジングの外壁部の一部が外部に向けて突き出された中空の凸状部の中空部分に収容される。ハウジングの凸状部は、ハウジングの嵌合部と同様、相手側部品との嵌合向きに突出している。更に、相手側部品は、コネクタの嵌合部が嵌め込まれる被嵌合部と、コネクタの凸状部が嵌め込まれるように窪む凹状部と、を有する。そして、コネクタが相手側部品に組み付けられるとき、ヒューズの溶断部が収容された凸状部が相手側部品の凹状部に嵌め込まれることになる。このような凸状部と凹状部との嵌め合いにより、ヒューズの溶断部に生じた熱が、ハウジングの凸状部から周辺に放出され、相手側部品の凹状部に吸熱される。よって、ヒューズに生じた熱を、凸状部を経て凹状部に向けて、効率良く放熱することができる。したがって、本構成の組付構造は、コネクタへの通電時(即ち、コネクタが相手側部品に組み付けられたとき)、ヒューズに生じた熱の放熱性に優れている。 According to the assembly structure of the configuration [4] above, the fusing part of the fuse incorporated in the connector is housed in the hollow portion of the hollow convex portion projecting outward from a part of the outer wall of the housing. be done. Like the fitting portion of the housing, the convex portion of the housing protrudes in the fitting direction with the mating component. Further, the mating component has a fitted portion into which the fitting portion of the connector is fitted, and a recessed portion recessed into which the projected portion of the connector is fitted. Then, when the connector is attached to the mating component, the convex portion containing the blown portion of the fuse is fitted into the concave portion of the mating component. Due to such fitting of the convex portion and the concave portion, the heat generated in the fusing portion of the fuse is released from the convex portion of the housing to the surroundings, and is absorbed by the concave portion of the mating component. Therefore, the heat generated in the fuse can be efficiently dissipated through the convex portion toward the concave portion. Therefore, the assembly structure of this configuration is excellent in dissipating heat generated in the fuse when the connector is energized (that is, when the connector is assembled to the mating component).

1 コネクタ
2 電線
3 電線
6 端子(端子金具)
10 ハウジング
11 本体部(外壁部)
11a 内部空間
12 嵌合部
13 凸状部
13a 中空部分
15 電線挿通孔(挿通部)
20 ヒューズ
21 本体部
90 相手側部品
91 被嵌合部
92 凹状部
1 connector 2 electric wire 3 electric wire 6 terminal (terminal fitting)
10 housing 11 main body (outer wall)
11a internal space 12 fitting portion 13 convex portion 13a hollow portion 15 wire insertion hole (insertion portion)
20 fuse 21 main body 90 mating part 91 fitting part 92 recessed part

Claims (4)

端子金具と、
前記端子金具に繋がる電線と、
相手側部品との嵌合向きに突出する形状を有し且つ前記端子金具が収容される嵌合部と、前記電線を配索する内部空間を画成する外壁部と、前記嵌合向きに凸となる形状を有するように前記外壁部の一部が外部に向けて突き出された中空の凸状部と、を有するハウジングと、
前記凸状部の中空部分に収容される溶断部を有し、前記電線に接続されるヒューズと、を備える、
コネクタ。
a terminal fitting;
an electric wire connected to the terminal fitting;
A fitting portion having a shape protruding in a fitting direction with a mating component and accommodating the terminal fitting, an outer wall portion defining an internal space for routing the electric wire, and a projection in the fitting direction. a housing having a hollow convex portion in which a portion of the outer wall portion protrudes outward so as to have a shape of
a fuse having a fusing portion accommodated in a hollow portion of the convex portion and connected to the electric wire;
connector.
請求項1に記載のコネクタにおいて、
前記ハウジングは、
前記電線を当該ハウジングの内外に挿通させる挿通部を、前記凸状部と当該挿通部との間に前記嵌合部を挟む位置に有する、
コネクタ。
A connector according to claim 1, wherein
The housing is
An insertion portion for inserting the electric wire into and out of the housing is provided at a position sandwiching the fitting portion between the convex portion and the insertion portion,
connector.
請求項1又は請求項2に記載のコネクタにおいて、
前記外壁部の前記一部が外部に向けて凸となるように湾曲することにより、前記凸状部の前記中空部分が画成される、
コネクタ。
In the connector according to claim 1 or claim 2,
The hollow portion of the convex portion is defined by curving the portion of the outer wall portion so as to protrude outward.
connector.
請求項1~請求項3の何れか一項に記載のコネクタと、前記コネクタが組み付けられる相手側部品と、を備える組付構造であって、
前記相手側部品は、
前記コネクタの前記嵌合部が嵌め込まれる被嵌合部と、前記コネクタの前記凸状部が嵌め込まれるように前記コネクタから離れる向きに窪む凹状部と、を有し、
前記嵌合部が前記被嵌合部に嵌め込まれ、且つ、前記凸状部が前記凹状部に嵌め込まれた状態にて、前記コネクタが前記相手側部品に組み付けられる、
組付構造。
An assembly structure comprising the connector according to any one of claims 1 to 3 and a mating part to which the connector is assembled,
The mating part is
a fitted portion into which the fitting portion of the connector is fitted; and a concave portion recessed away from the connector so that the convex portion of the connector is fitted therein;
The connector is assembled to the mating component in a state in which the fitting portion is fitted into the fitted portion and the convex portion is fitted into the concave portion.
assembly structure.
JP2021171072A 2021-10-19 2021-10-19 Connector and assembly structure Active JP7381540B2 (en)

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US17/965,777 US20230120275A1 (en) 2021-10-19 2022-10-14 Connector and mounting structure
DE102022211004.8A DE102022211004A1 (en) 2021-10-19 2022-10-18 Connector and mounting structure
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